import net.floodlightcontroller.debugevent.EventResource.Metadata; //导入依赖的package包/类
@Override
public EventResourceBuilder
        customFormat(@Nullable Collection<SwitchPort> aps2, String name,
                     EventResourceBuilder edb) {
    if (aps2 != null) {
        StringBuilder apsStr2 = new StringBuilder();
        if (aps2.size() == 0) {
            apsStr2.append("--");
        } else {
            for (SwitchPort ap : aps2) {
                apsStr2.append(ap.getSwitchDPID().toString());
                apsStr2.append("/");
                apsStr2.append(ap.getPort());
                apsStr2.append(" ");
            }
            // remove trailing space
            apsStr2.deleteCharAt(apsStr2.length());
        }
        edb.dataFields.add(new Metadata(name, apsStr2.toString()));
    }
    return edb;
}
 

import net.floodlightcontroller.debugevent.EventResource.Metadata; //导入依赖的package包/类
@Override
public EventResourceBuilder customFormat(@Nullable
                                     SoftReference<Collection<Object>> srefCollectionObj2,
                                     String name, EventResourceBuilder edb) {
    if (srefCollectionObj2 != null) {
        Collection<Object> ol2 = srefCollectionObj2.get();
        if (ol2 != null) {
            StringBuilder sb = new StringBuilder();
            if (ol2.size() == 0) {
                sb.append("--");
            } else {
                for (Object o : ol2) {
                    sb.append(o.toString());
                    sb.append(" ");
                }
            }
            edb.dataFields.add(new Metadata(name, sb.toString()));
        } else {
            edb.dataFields.add(new Metadata(name,
                                            "-- reference not available --"));
        }
    }
    return edb;
}
 

import net.floodlightcontroller.debugevent.EventResource.Metadata; //导入依赖的package包/类
@Override
public EventResourceBuilder
        customFormat(@Nullable Collection<Object> obl2, String name,
                     EventResourceBuilder edb) {
    if (obl2 != null) {
        StringBuilder sbldr2 = new StringBuilder();
        if (obl2.size() == 0) {
            sbldr2.append("--");
        } else {
            for (Object o : obl2) {
                sbldr2.append(o.toString());
                sbldr2.append(" ");
            }
        }
        edb.dataFields.add(new Metadata(name, sbldr2.toString()));
    }
    return edb;
}